Highlighting certain dates within calendar control using dayrender

I have a calendar control on my page and so far i have been able to  set it up so that only 45 days worth are selectable. Now within those 45, i have 14days that i want to highlight so they know that those days are their current pay period.

This is what i have, but cant seem to figure out what im missing or not doing. I have a procedure that returns the 14 days i need to highlight those days when the calendar is rendered. My getPayPeriod() returns a list of 14 dates.

Here is my DayRender event

protected void DayRender(Object source, DayRenderEventArgs e)
    {


        // Change the background color of the days in the month.
        if (!e.Day.IsOtherMonth && !e.Day.IsWeekend)
            e.Cell.BackColor = System.Drawing.Color.Gray;




        DateTime dt = DateTime.Today.AddDays(30);
        DateTime minDate = Convert.ToDateTime(getPayPeriod());


        if (e.Day.Date >= dt.Date)
        {
            e.Cell.BackColor = System.Drawing.Color.LightGray;
            e.Day.IsSelectable = false;
            e.Cell.ForeColor = System.Drawing.Color.LightGray;
        }
        else if (e.Day.Date <= minDate.Date)
        {
            e.Cell.BackColor = System.Drawing.Color.LightGray;
            e.Day.IsSelectable = false;
            e.Cell.ForeColor = System.Drawing.Color.LightGray;
        }
        else
        {
            e.Cell.BackColor = System.Drawing.Color.WhiteSmoke;
            e.Day.IsSelectable = true;
        }
        if (e.Day.IsSelected)
        {
            e.Cell.BackColor = System.Drawing.Color.Red;
            e.Cell.Style.Add("font-weight", "bold");
            e.Cell.Style.Add("color", "black");
        }


    }